Plugin file
Plugin configuration file
{
"name": "dragino_lht52",
"version": "1.0.0",
"description": "The Dragino LHT52 is a compact, indoor LoRaWAN Temperature & Humidity sensor designed for professional wireless sensor networks.",
"author": "Thinger.io",
"license": "MIT",
"repository": {
"type": "git",
"url": "https://github.com/thinger-io/plugins.git",
"directory": "dragino-lht52"
},
"metadata": {
"name": "Dragino LHT52",
"description": "The Dragino LHT52 is a compact, indoor LoRaWAN Temperature & Humidity sensor designed for professional wireless sensor networks.",
"image": "assets/lht52.png",
"category": "devices",
"vendor": "dragino"
},
"resources": {
"products": [
{
"description": "The Dragino LHT52 is a compact, indoor LoRaWAN Temperature & Humidity sensor designed for professional wireless sensor networks.",
"enabled": true,
"name": "Dragino LHT52",
"product": "dragino_lht52",
"profile": {
"api": {
"downlink": {
"enabled": true,
"handle_connectivity": false,
"request": {
"data": {
"path": "/downlink",
"payload": "{\r\n \"data\" : \"{{payload.data=\"\"}}\",\r\n \"port\" : {{payload.port=2}},\r\n \"priority\": {{payload.priority=3}},\r\n \"confirmed\" : {{payload.confirmed=false}},\r\n \"uplink\" : {{property.uplink}} \r\n}",
"payload_function": "",
"payload_type": "",
"plugin": "{{property.uplink.source}}",
"target": "plugin_endpoint"
}
}
},
"uplink": {
"enabled": true,
"handle_connectivity": true,
"request": {
"data": {
"payload": "{{payload}}",
"payload_function": "",
"payload_type": "source_payload",
"resource_stream": "uplink",
"target": "resource_stream"
}
}
}
},
"autoprovisions": {
"device_autoprovisioning": {
"config": {
"mode": "pattern",
"pattern": "lht52_.*"
},
"enabled": true
}
},
"buckets": {
"dragino_lht52_data": {
"backend": "mongodb",
"data": {
"payload": "{{payload}}",
"payload_function": "",
"payload_type": "source_payload",
"resource": "uplink_decoded",
"source": "resource",
"update": "events"
},
"enabled": true,
"retention": {
"period": 3,
"unit": "months"
},
"tags": []
}
},
"code": {
"code": "function decodeThingerUplink(thingerData) {\n // 0. If data has already been decoded, we will return it\n if (thingerData.decodedPayload) return thingerData.decodedPayload;\n \n // 1. Extract and Validate Input\n // We need 'payload' (hex string) and 'fPort' (integer)\n const hexPayload = thingerData.payload || \"\";\n const port = thingerData.fPort || 1;\n\n // 2. Convert Hex String to Byte Array\n const bytes = [];\n for (let i = 0; i < hexPayload.length; i += 2) {\n bytes.push(parseInt(hexPayload.substr(i, 2), 16));\n }\n\n // 3. Dynamic Function Detection and Execution\n \n // CASE A: (The Things Stack v3)\n if (typeof decodeUplink === 'function') {\n try {\n const input = {\n bytes: bytes,\n fPort: port\n };\n var result = decodeUplink(input);\n \n if (result.data) return result.data;\n\n return result; \n } catch (e) {\n console.error(\"Error inside decodeUplink:\", e);\n throw e;\n }\n }\n\n // CASE B: Legacy TTN (v2)\n else if (typeof Decoder === 'function') {\n try {\n return Decoder(bytes, port);\n } catch (e) {\n console.error(\"Error inside Decoder:\", e);\n throw e;\n }\n }\n\n // CASE C: No decoder found\n else {\n throw new Error(\"No compatible TTN decoder function (decodeUplink or Decoder) found in scope.\");\n }\n}\n\n\n// TTN decoder\nfunction str_pad(byte) {\n var zero = '0';\n var hex = byte.toString(16);\n var tmp = 2 - hex.length;\n return zero.substr(0, tmp) + hex;\n}\n\nfunction decodeUplink(input) {\n var port = input.fPort;\n var bytes = input.bytes;\n var data = {};\n switch (input.fPort) {\n case 2:\n {\n if (bytes.length == 11) {\n data.TempC_SHT = parseFloat(((((bytes[0] << 24) >> 16) | bytes[1]) / 100).toFixed(2));\n data.Hum_SHT = parseFloat(((((bytes[2] << 24) >> 16) | bytes[3]) / 10).toFixed(1));\n data.TempC_DS = parseFloat(((((bytes[4] << 24) >> 16) | bytes[5]) / 100).toFixed(2));\n\n data.Ext = bytes[6];\n data.Systimestamp = (bytes[7] << 24) | (bytes[8] << 16) | (bytes[9] << 8) | bytes[10];\n } else {\n data.Status = 'RPL data or sensor reset';\n }\n }\n return {\n data: data,\n };\n break;\n\n case 3:\n {\n data.Status = 'Data retrieved, your need to parse it by the application server';\n }\n return {\n data: data,\n };\n break;\n\n case 4:\n {\n data.DS18B20_ID = str_pad(bytes[0]) + str_pad(bytes[1]) + str_pad(bytes[2]) + str_pad(bytes[3]) + str_pad(bytes[4]) + str_pad(bytes[5]) + str_pad(bytes[6]) + str_pad(bytes[7]);\n }\n return {\n data: data,\n };\n break;\n\n case 5:\n {\n data.Sensor_Model = bytes[0];\n data.Firmware_Version = str_pad((bytes[1] << 8) | bytes[2]);\n data.Freq_Band = bytes[3];\n data.Sub_Band = bytes[4];\n data.Bat_mV = (bytes[5] << 8) | bytes[6];\n }\n return {\n data: data,\n };\n break;\n\n default:\n return {\n errors: ['unknown FPort'],\n };\n }\n}\n\nfunction normalizeUplink(input) {\n var data = [];\n\n if (input.data.TempC_SHT) {\n data.push({\n air: {\n location: 'indoor',\n temperature: input.data.TempC_SHT,\n relativeHumidity: input.data.Hum_SHT,\n },\n });\n }\n\n if (input.data.TempC_DS) {\n data.push({\n air: {\n location: 'outdoor',\n temperature: input.data.TempC_DS,\n },\n });\n }\n\n if (input.data.Bat_mV) {\n data.push({\n battery: input.data.Bat_mV,\n });\n }\n\n return { data: data };\n}\n",
"environment": "javascript",
"storage": "",
"version": "1.0"
},
"flows": {
"dragino_lht52_decoder": {
"data": {
"payload": "{{payload}}",
"payload_function": "decodeThingerUplink",
"payload_type": "source_payload",
"resource": "uplink",
"source": "resource",
"update": "events"
},
"enabled": true,
"sink": {
"payload": "{{payload}}",
"payload_function": "",
"payload_type": "source_payload",
"resource_stream": "uplink_decoded",
"target": "resource_stream"
},
"split_data": false
}
},
"properties": {
"uplink": {
"data": {
"payload": "{{payload}}",
"payload_function": "",
"payload_type": "source_payload",
"resource": "uplink",
"source": "resource",
"update": "events"
},
"default": {
"source": "value"
},
"enabled": true
}
}
},
"_resources": {
"properties": [
{
"property": "dashboard",
"value": {
"tabs": [
{
"name": "LHT52",
"widgets": [
{
"layout": {
"col": 0,
"row": 0,
"sizeX": 2,
"sizeY": 6
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Indoor Temperature"
},
"properties": {
"color": "#e74c3c",
"max": 85,
"min": -40,
"unit": "°C"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "dragino_lht52_data",
"mapping": "TempC_SHT",
"tags": {
"device": [],
"group": []
}
},
"color": "#e74c3c",
"name": "Indoor Temp",
"source": "bucket",
"timespan": {
"mode": "latest"
}
}
],
"type": "donutchart"
},
{
"layout": {
"col": 2,
"row": 0,
"sizeX": 2,
"sizeY": 6
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Humidity"
},
"properties": {
"color": "#3498db",
"max": 100,
"min": 0,
"unit": "%"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "dragino_lht52_data",
"mapping": "Hum_SHT",
"tags": {
"device": [],
"group": []
}
},
"color": "#3498db",
"name": "Humidity",
"source": "bucket",
"timespan": {
"mode": "latest"
}
}
],
"type": "donutchart"
},
{
"layout": {
"col": 4,
"row": 0,
"sizeX": 2,
"sizeY": 6
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "External Temperature"
},
"properties": {
"color": "#f39c12",
"max": 125,
"min": -55,
"unit": "°C"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "dragino_lht52_data",
"mapping": "TempC_DS",
"tags": {
"device": [],
"group": []
}
},
"color": "#f39c12",
"name": "External Temp",
"source": "bucket",
"timespan": {
"mode": "latest"
}
}
],
"type": "donutchart"
},
{
"layout": {
"col": 0,
"row": 6,
"sizeX": 3,
"sizeY": 8
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Temperature History (24h)"
},
"properties": {
"axis": true,
"fill": false,
"legend": true,
"multiple_axes": false,
"options": "var options = {\n chart: {\n type: 'area'\n },\n dataLabels: {\n enabled: false\n },\n stroke: {\n curve: 'smooth',\n width: 3\n },\n xaxis: {\n type: 'datetime',\n labels: {\n datetimeUTC: false\n },\n tooltip: {\n enabled: false\n }\n },\n yaxis: {\n labels: {\n formatter: function (val) {\n if (val !== null && typeof val !== 'undefined')\n return val.toFixed(1) + '°C';\n }\n }\n },\n tooltip: {\n x: {\n format: 'dd/MM/yyyy HH:mm:ss'\n }\n }\n};\n"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "dragino_lht52_data",
"mapping": "TempC_SHT",
"tags": {
"device": [],
"group": []
}
},
"color": "#e74c3c",
"name": "Indoor Temp (°C)",
"source": "bucket",
"timespan": {
"magnitude": "hour",
"mode": "relative",
"period": "latest",
"value": 24
}
},
{
"bucket": {
"backend": "mongodb",
"id": "dragino_lht52_data",
"mapping": "TempC_DS",
"tags": {
"device": [],
"group": []
}
},
"color": "#f39c12",
"name": "External Temp (°C)",
"source": "bucket",
"timespan": {
"magnitude": "hour",
"mode": "relative",
"period": "latest",
"value": 24
}
}
],
"type": "apex_charts"
},
{
"layout": {
"col": 3,
"row": 6,
"sizeX": 3,
"sizeY": 8
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Humidity History (24h)"
},
"properties": {
"axis": true,
"fill": true,
"legend": true,
"multiple_axes": false,
"options": "var options = {\n chart: {\n type: 'area',\n zoom: {\n type: 'x',\n enabled: true,\n autoScaleYaxis: true\n }\n },\n dataLabels: {\n enabled: false\n },\n stroke: {\n curve: 'smooth',\n width: 3\n },\n xaxis: {\n type: 'datetime',\n labels: {\n datetimeUTC: false\n },\n tooltip: {\n enabled: false\n }\n },\n yaxis: {\n min: 0,\n max: 100,\n labels: {\n formatter: function (val) {\n if (val !== null && typeof val !== 'undefined')\n return val.toFixed(1) + '%';\n }\n }\n },\n tooltip: {\n x: {\n format: 'dd/MM/yyyy HH:mm:ss'\n }\n }\n};\n"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "dragino_lht52_data",
"mapping": "Hum_SHT",
"tags": {
"device": [],
"group": []
}
},
"color": "#3498db",
"name": "Humidity (%)",
"source": "bucket",
"timespan": {
"magnitude": "hour",
"mode": "relative",
"period": "latest",
"value": 24
}
}
],
"type": "apex_charts"
},
{
"layout": {
"col": 0,
"row": 14,
"sizeX": 2,
"sizeY": 5
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Battery"
},
"properties": {
"color": "#27ae60",
"gradient": false,
"icon": "fas fa-battery-three-quarters",
"iconColor": "#27ae60",
"majorTicks": 10,
"max": 3600,
"min": 2500,
"plateColor": "#ffffff",
"showValue": true,
"textColor": "#1E313E",
"tickColor": "#000000",
"unit": "mV"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "dragino_lht52_data",
"mapping": "Bat_mV",
"tags": {
"device": [],
"group": []
}
},
"color": "#27ae60",
"name": "Battery",
"source": "bucket",
"timespan": {
"mode": "latest"
}
}
],
"type": "gauge"
},
{
"layout": {
"col": 2,
"row": 14,
"sizeX": 4,
"sizeY": 5
},
"panel": {
"color": "#ffffff",
"currentColor": "#ffffff",
"showOffline": {
"type": "none"
},
"title": "Battery History (7 days)"
},
"properties": {
"axis": true,
"fill": false,
"legend": true,
"multiple_axes": false,
"options": "var options = {\n chart: {\n type: 'line',\n zoom: {\n type: 'x',\n enabled: true,\n autoScaleYaxis: true\n }\n },\n stroke: {\n curve: 'straight',\n width: 2\n },\n markers: {\n size: 4\n },\n xaxis: {\n type: 'datetime',\n labels: {\n datetimeUTC: false\n },\n tooltip: {\n enabled: false\n }\n },\n yaxis: {\n min: 2500,\n max: 3600,\n labels: {\n formatter: function (val) {\n if (val !== null && typeof val !== 'undefined')\n return val.toFixed(0) + ' mV';\n }\n }\n },\n tooltip: {\n x: {\n format: 'dd/MM/yyyy HH:mm:ss'\n }\n }\n};\n"
},
"sources": [
{
"bucket": {
"backend": "mongodb",
"id": "dragino_lht52_data",
"mapping": "Bat_mV",
"tags": {
"device": [],
"group": []
}
},
"color": "#27ae60",
"name": "Battery (mV)",
"source": "bucket",
"timespan": {
"magnitude": "day",
"mode": "relative",
"period": "latest",
"value": 7
}
}
],
"type": "apex_charts"
}
]
}
]
}
}
]
}
}
]
}
}